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Add keccak256 and blake2b hash functions to move api (MystenLabs#7986)
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,64 @@ | ||
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| <a name="0x2_hash"></a> | ||
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| # Module `0x2::hash` | ||
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| Module which defines hash functions. Note that Sha-256 and Sha3-256 is available in the std::hash module in the | ||
| standard library. | ||
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| - [Function `blake2b256`](#0x2_hash_blake2b256) | ||
| - [Function `keccak256`](#0x2_hash_keccak256) | ||
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| <pre><code></code></pre> | ||
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| <a name="0x2_hash_blake2b256"></a> | ||
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| ## Function `blake2b256` | ||
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| @param data: Arbitrary binary data to hash | ||
| Hash the input bytes using Blake2b-256 and returns 32 bytes. | ||
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| <pre><code><b>public</b> <b>fun</b> <a href="hash.md#0x2_hash_blake2b256">blake2b256</a>(data: &<a href="">vector</a><u8>): <a href="">vector</a><u8> | ||
| </code></pre> | ||
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| <details> | ||
| <summary>Implementation</summary> | ||
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| <pre><code><b>native</b> <b>public</b> <b>fun</b> <a href="hash.md#0x2_hash_blake2b256">blake2b256</a>(data: &<a href="">vector</a><u8>): <a href="">vector</a><u8>; | ||
| </code></pre> | ||
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| </details> | ||
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| <a name="0x2_hash_keccak256"></a> | ||
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| ## Function `keccak256` | ||
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| @param data: Arbitrary binary data to hash | ||
| Hash the input bytes using keccak256 and returns 32 bytes. | ||
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| <pre><code><b>public</b> <b>fun</b> <a href="hash.md#0x2_hash_keccak256">keccak256</a>(data: &<a href="">vector</a><u8>): <a href="">vector</a><u8> | ||
| </code></pre> | ||
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| <details> | ||
| <summary>Implementation</summary> | ||
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| <pre><code><b>native</b> <b>public</b> <b>fun</b> <a href="hash.md#0x2_hash_keccak256">keccak256</a>(data: &<a href="">vector</a><u8>): <a href="">vector</a><u8>; | ||
| </code></pre> | ||
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| </details> |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,14 @@ | ||
| // Copyright (c) Mysten Labs, Inc. | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
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| /// Module which defines hash functions. Note that Sha-256 and Sha3-256 is available in the std::hash module in the | ||
| /// standard library. | ||
| module sui::hash { | ||
| /// @param data: Arbitrary binary data to hash | ||
| /// Hash the input bytes using Blake2b-256 and returns 32 bytes. | ||
| native public fun blake2b256(data: &vector<u8>): vector<u8>; | ||
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| /// @param data: Arbitrary binary data to hash | ||
| /// Hash the input bytes using keccak256 and returns 32 bytes. | ||
| native public fun keccak256(data: &vector<u8>): vector<u8>; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,50 @@ | ||
| // Copyright (c) Mysten Labs, Inc. | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
| use crate::legacy_empty_cost; | ||
| use fastcrypto::hash::{Blake2b256, HashFunction, Keccak256}; | ||
| use move_binary_format::errors::PartialVMResult; | ||
| use move_vm_runtime::native_functions::NativeContext; | ||
| use move_vm_types::{ | ||
| loaded_data::runtime_types::Type, | ||
| natives::function::NativeResult, | ||
| pop_arg, | ||
| values::{Value, VectorRef}, | ||
| }; | ||
| use smallvec::smallvec; | ||
| use std::collections::VecDeque; | ||
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| fn hash<H: HashFunction<DIGEST_SIZE>, const DIGEST_SIZE: usize>( | ||
| _context: &mut NativeContext, | ||
| ty_args: Vec<Type>, | ||
| mut args: VecDeque<Value>, | ||
| ) -> PartialVMResult<NativeResult> { | ||
| debug_assert!(ty_args.is_empty()); | ||
| debug_assert!(args.len() == 1); | ||
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| // TODO: implement native gas cost estimation https://github.com/MystenLabs/sui/issues/3593 | ||
| let cost = legacy_empty_cost(); | ||
| let msg = pop_arg!(args, VectorRef); | ||
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| Ok(NativeResult::ok( | ||
| cost, | ||
| smallvec![Value::vector_u8( | ||
| H::digest(msg.as_bytes_ref().as_slice()).digest | ||
| )], | ||
| )) | ||
| } | ||
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| pub fn keccak256( | ||
| context: &mut NativeContext, | ||
| ty_args: Vec<Type>, | ||
| args: VecDeque<Value>, | ||
| ) -> PartialVMResult<NativeResult> { | ||
| hash::<Keccak256, 32>(context, ty_args, args) | ||
| } | ||
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| pub fn blake2b256( | ||
| context: &mut NativeContext, | ||
| ty_args: Vec<Type>, | ||
| args: VecDeque<Value>, | ||
| ) -> PartialVMResult<NativeResult> { | ||
| hash::<Blake2b256, 32>(context, ty_args, args) | ||
| } |
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